Alpaca's and pigs pay all my bills, including vehicles. I would hardly call them pointless. Ive eaten a couple too, and there mighty tasty meat. They breed easy, and are hardy, with little call for vets or expensive feeds apart from hay in winter and a bit of meal (which I grow and make myself).
Pigs are the best animals on our holding, the old sows are great with the kids, and rear enough piglets too keep us well fed, we make all of our own parma style hams, salamis, bacon. The sale of weaners brings in plenty of revenue.
Choose your base stock wisely, it can be worth it in the long run to